What Rocks are a no no for shrimps?

[Mossi]

hey guys,

i heard about limestone rocks not being healthy for shrimp.. how does that affect the shrimps?
also what other rocks are a nono for shrimps?

[Loudness]

i believe are those rocks that affect ph and gh. the only rock i know that's safe is lava rock (am i right?).

[shrimpist]

Unknown source of rocks may contain traces of copper which are highly fatal to shrimp. Rather safe than to be sorry. I always quarantine those rocks with some cull shrimp in separate tank for at least 2weeks before introducing them into main tank.

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[alvinchan80]

Unknown source of rocks may contain traces of copper which are highly fatal to shrimp. Rather safe than to be sorry. I always quarantine those rocks with some cull shrimp in separate tank for at least 2weeks before introducing them into main tank.

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I have kept CRS with rocks for more then 6 months... They survive but the parameter is totally not suitable for CRS... GH gradually climbs to 14dGH...

It's a risk hobbyist takes if they want play with rocks.. But no risk taken, no lesson learnt.. That's what I have gone through...

Happy shrimping...

[Mossi]

ah ic.

survival is one thing and thriving and breeding is another.

yupps i read somewhere that copper is fatal for shrimp.

*fingers crossed.